*{
    padding: 0;
    margin: 0;
    list-style: none;
}

.header{
    width: 100%;
    height: 150px;
    background: #e3e4e5;
}

.top{
    display: flex;
    justify-content: space-around;
    background: black;
    height: 40px;
    align-items: center;
}  

.top ul{
    display: flex;
}

.top ul li{
    margin-left: 15px;
    color: white;
    font-size: 12px;
}
li:hover{
    cursor: pointer;
}

.commodity{
    display: flex;
    align-items: center;
    justify-content: space-around;
    height: 110px;
}

.commodity ul{
    display: flex;
}

.commodity ul li{
    margin-left: 15px;
}

.crumbs{
    display: flex;
    justify-content: space-evenly;
}

.company{
    width: 100%;
    height: 550px;
    line-height: 550px;
    background: skyblue;
    text-align: center;
}

.Administration{
    width: 100%;
    height: 550px;
    line-height: 550px;
    background: orange;
    text-align: center;
}

.xiaomi{
    width: 100%;
    height: 550px;
    line-height: 550px;
    background: pink;
    text-align: center;
}

.development{
    width: 100%;
    height: 550px;
    line-height: 550px;
    background: papayawhip;
    text-align: center;
}

